EP 2109093 A1 20091014 - Scanning backlight colour control
Title (en)
Scanning backlight colour control
Title (de)
Farbsteuerung für abtastendes Rücklicht
Title (fr)
Contrôle de la couleur de rétroéclairage à balayage
Publication
Application
Priority
EP 08154288 A 20080409
Abstract (en)
A scanning backlight (70) for a display, the backlight having a number of sections separately illuminated, a controller (20) to control the illuminating of the different sections at different times, and to control relative luminance levels of the different sections, and the backlight having a sensor (60) to detect a spectrum of the lighting, the controller being arranged to control a colour of the illuminations of the different sections according to the detected spectrum. This combination can enable the colour output to be maintained accurately without needing an external spectrometer, and control the uniformity of colour in the different sections. This control can enable the specifications of any parts used to illuminate the sections to be relaxed, such as temperature and aging specifications, to keep the costs lower.
IPC 8 full level
G09G 3/34 (2006.01)
CPC (source: EP US)
G09G 3/3413 (2013.01 - EP US); G09G 3/342 (2013.01 - EP US); G09G 2310/024 (2013.01 - EP US); G09G 2320/0233 (2013.01 - EP US); G09G 2320/0666 (2013.01 - EP US); G09G 2360/145 (2013.01 - EP US)
Citation (applicant)
- WO 2006014473 A1 20060209 - HONEYWELL INT INC [US], et al
- US 2006290624 A1 20061228 - ASHDOWN IAN [CA]
Citation (search report)
- [XY] US 2007242459 A1 20071018 - NISHIGAKI EITARO [JP]
- [Y] US 2007171670 A1 20070726 - ZAGAR PETER A [US], et al
- [XY] WO 2005111976 A1 20051124 - KONINKL PHILIPS ELECTRONICS NV [NL], et al
- [Y] US 2007097358 A1 20070503 - OON CHIN H [MY], et al
- [A] EP 1734502 A1 20061220 - SONY ERICSSON MOBILE COMM AB [SE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08154288 A 20080409; US 42054209 A 20090408